Sarah Rose, For All the Tea in China: Espionage, Empire, and the Secret Formula for the World’s Favourite ... 2011). Zheng Yangwen, The Social Life of Opium in China (Cambridge: Cambridge University ...

PRESENTER:'They then bought up Indian opium and sold it to China, 'buying tea in return. PRESENTER:'And so they created a trading triangle. 'The profits were high, but so was the risk. PRESENTER ...